| 单词 | servo control flap |
| 释义 | > as lemmasservo control flap 2. Aeronautics. In an aeroplane: a trim tab or servo tab. More fully servo control tab, servo control flap. Now rare. ΚΠ 1928 Rep. & Mem. Aeronaut. Res. Council (H.M.S.O.) No. 1187. 4 There is no spring force on the servo control. 1934 Jrnl. Aeronaut. Sci. 1 155/1 The device now known as the servo control flap is a development of the ‘Flettner Rudder’ which was invented by the designer of the rotor ships. 1979 Sport Aviation Mar. 45/1 Retrim the airplane if necessary but do not move the servo control tabs. 1996 L. Day & I. McNeil Biogr. Dict. of Hist. Technol. (2005) 453 These servo-controls, or trim tabs, were used on large German bombers towards the end of the war. < as lemmas |
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